CN109687899A - The method of satellite synchronous signal is transmitted on extended pattern scytoblastema station - Google Patents
The method of satellite synchronous signal is transmitted on extended pattern scytoblastema station Download PDFInfo
- Publication number
- CN109687899A CN109687899A CN201910038916.9A CN201910038916A CN109687899A CN 109687899 A CN109687899 A CN 109687899A CN 201910038916 A CN201910038916 A CN 201910038916A CN 109687899 A CN109687899 A CN 109687899A
- Authority
- CN
- China
- Prior art keywords
- signal
- synchronous signal
- satellite synchronous
- satellite
- optical signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18517—Transmission equipment in earth stations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0016—Arrangements for synchronising receiver with transmitter correction of synchronization errors
- H04L7/0033—Correction by delay
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Relay Systems (AREA)
Abstract
The embodiment of the present invention provides a kind of method that satellite synchronous signal is transmitted on extended pattern scytoblastema station, comprising: Base Band Unit receives satellite synchronous signal, merges with business datum, reconvert is at optical signal, so that the optical signal transmits in a fiber；Expanding element receives the optical signal, and the optical signal is converted into electric signal, so that the electric signal transmits in twisted pair；Remote Radio Unit receives the electric signal, therefrom separates and restore the satellite synchronous signal, and the satellite synchronous signal is launched.The method provided in an embodiment of the present invention that satellite synchronous signal is transmitted on extended pattern scytoblastema station, the transmission of satellite synchronous signal is realized by extended pattern scytoblastema station, the transmission link for making full use of extended pattern scytoblastema station itself is avoided repeating to construct, deployment less investment, is distributed flexibly；And the remote restricted problem of the drawing for efficiently solving satellite synchronous signal.
Description
Technical field
The present embodiments relate to fields of communication technology, more particularly to one kind to transmit satellite synchronization on extended pattern scytoblastema station
The method of signal.
Background technique
Extended pattern scytoblastema station is the in-door covering scheme that current mobile operator actively pushes forward deployment, different according to standard,
Realize the Distributed coverage of 2G, 3G, 4G mobile communication signal.It separates Base Band Unit and Remote Radio Unit, and centre is added
Expanding element realizes the flexible distributed and miniaturization of Remote Radio Unit.
Satellite synchronization, such as GPS (global positioning system), Beidou, it is very widely used in many fields, it needs to use
Positioning, navigation, time service, synchronizing function application scenarios, satellite synchronization is all preferred embodiment.Satellite synchronization is extended pattern scytoblastema station
Realize the synchronous preferred embodiment of the whole network, synchronization signal is linked into Base Band Unit therein.
Satellite synchronous signal reaches the energy very little on ground, and penetrability is poor, thus the reception of its signal need it is good
Good terrace environment, this is greatly limited the placement of receiving antenna.It is main when indoor equipment needs satellite synchronous signal
Will be there are two types of scheme: first is that receiving star is positioned in equipment side, such as passive GPS transmits satellite synchronization carrier wave tune using radio frequency feed line
Signal processed；Another is to receive star to be positioned in antenna side, such as RGPS (zooming out formula GPS), is transmitted using twisted pair decoded
1pps+ToD (pulse per second (PPS)+day time) differential signal.Two schemes have apparent limitation: (1) feeder line scheme is because signal is decayed
Problem, maximum zooms out distance and is no more than 100 meters, if it is considered that covering plus feeder line room subsystem, then actually zooms out distance more
It is short；(2) distance that zooms out of twisted pair scheme is promoted, but is limited by power supply and Double-strand transmission distortion factors, cannot still be surpassed
300 meters are crossed, and what is transmitted is decoded differential signal, only have access an equipment and use, cannot be flexibly used to be distributed and cover
Lid.Therefore to the equipment for being much mounted on large buildings, needing satellite synchronization in the room of market, in tunnel, for terminal, obtain same
It is highly difficult for walking signal.
Summary of the invention
A kind of overcome the above problem the purpose of the embodiment of the present invention is that providing or at least be partially solved the above problem
The method of satellite synchronous signal is transmitted on extended pattern scytoblastema station.
In order to solve the above-mentioned technical problem, on the one hand, the embodiment of the present invention provides one kind and transmits on extended pattern scytoblastema station
The method of satellite synchronous signal, comprising:
Base Band Unit receives satellite synchronous signal, merges with business datum, and reconvert is at optical signal, so that the light is believed
It number transmits in a fiber；
Expanding element receives the optical signal, and the optical signal is converted into electric signal, so that the electric signal exists
It is transmitted in twisted pair；
Remote Radio Unit receives the electric signal, therefrom separates and restore the satellite synchronous signal, and will be described
Satellite synchronous signal is launched.
On the other hand, the embodiment of the present invention provides a kind of extended pattern scytoblastema station, comprising:
Base Band Unit merges for receiving satellite synchronous signal with business datum, and reconvert is at optical signal, so that institute
Optical signal is stated to transmit in a fiber；
Expanding element is converted into electric signal for receiving the optical signal, and by the optical signal, so that the telecommunications
It number is transmitted in twisted pair；
Remote Radio Unit therefrom separates and restores the satellite synchronous signal, and will for receiving the electric signal
The satellite synchronous signal is launched.
In another aspect, the embodiment of the present invention provides a kind of electronic equipment, comprising:
Memory and processor, the processor and the memory complete mutual communication by bus；It is described to deposit
Reservoir is stored with the program instruction that can be executed by the processor, and it is above-mentioned that the processor calls described program instruction to be able to carry out
Method.
Another aspect, the embodiment of the present invention provide a kind of non-transient computer readable storage medium, are stored thereon with calculating
Machine program realizes above-mentioned method when the computer program is executed by processor.
The method provided in an embodiment of the present invention that satellite synchronous signal is transmitted on extended pattern scytoblastema station, passes through extended pattern skin
The transmission of satellite synchronous signal is realized in base station, makes full use of the transmission link of extended pattern scytoblastema station itself, avoids repeating construction, portion
Affix one's name to less investment, distribution flexibly；And the remote restricted problem of the drawing for efficiently solving satellite synchronous signal, in long tunnel
Equipment, terminal in the environment such as road, heavy construction body, basement obtain satellite synchronous signal and provide effective solution.
Detailed description of the invention
Fig. 1 is the method schematic diagram provided in an embodiment of the present invention that satellite synchronous signal is transmitted on extended pattern scytoblastema station；
Fig. 2 is extended pattern scytoblastema station structural schematic diagram provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the Base Band Unit of extended pattern scytoblastema station provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the expanding element of extended pattern scytoblastema station provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the Remote Radio Unit of extended pattern scytoblastema station provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of electronic equipment provided in an embodiment of the present invention.
Specific embodiment
In order to keep the purposes, technical schemes and advantages of the embodiment of the present invention clearer, implement below in conjunction with the present invention
Attached drawing in example, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment
It is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiment of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Fig. 1 is the method schematic diagram provided in an embodiment of the present invention that satellite synchronous signal is transmitted on extended pattern scytoblastema station,
As shown in Figure 1, the embodiment of the present invention provides a kind of method for transmitting satellite synchronous signal on extended pattern scytoblastema station, master is executed
Body is extended pattern scytoblastema station, which comprises
Step S101, Base Band Unit receive satellite synchronous signal, merge with business datum, reconvert at optical signal so that
The optical signal is obtained to transmit in a fiber；
Step S102, expanding element receives the optical signal, and the optical signal is converted into electric signal, so that described
Electric signal transmits in twisted pair；
Step S103, Remote Radio Unit receives the electric signal, therefrom separates and restore the satellite synchronous signal,
And the satellite synchronous signal is launched.
Specifically, Fig. 2 is extended pattern scytoblastema station structural schematic diagram provided in an embodiment of the present invention, as shown in Fig. 2, this hair
Extended pattern scytoblastema station described in bright embodiment includes Base Band Unit, several expanding elements and several Remote Radio Unit, is
The flexible distributed and miniaturization for realizing Remote Radio Unit separate Base Band Unit and Remote Radio Unit, and centre joined expansion
Unit is opened up, therefore, radio frequency unit is also known as Remote Radio Unit.Wherein, Base Band Unit is connected by optical fiber with expanding element, is extended
Unit is connected by twisted pair (cable) with Remote Radio Unit；Expanding element can with several Remote Radio Unit of the second line of a couplet,
Junior's expanding element can be cascaded.
Firstly, by Base Band Unit receive satellite synchronous signal, merge with business datum, reconvert at optical signal so that
Optical signal is obtained to transmit in a fiber.
Then, expanding element receives the optical signal of Base Band Unit transmission, and converts optical signals into electric signal, so that electric
Signal transmits in twisted pair.
Finally, Remote Radio Unit receives electric signal, satellite synchronous signal is therefrom separated and restored, and by satellite synchronization
Signal is launched.After equipment to be synchronized receives the satellite synchronous signal, realizes and synchronize.
The method provided in an embodiment of the present invention that satellite synchronous signal is transmitted on extended pattern scytoblastema station, passes through extended pattern skin
The transmission of satellite synchronous signal is realized in base station, makes full use of the transmission link of extended pattern scytoblastema station itself, avoids repeating construction, portion
Affix one's name to less investment, distribution flexibly；And the remote restricted problem of the drawing for efficiently solving satellite synchronous signal, in long tunnel
Equipment, terminal in the environment such as road, heavy construction body, basement obtain satellite synchronous signal and provide effective solution.
On the basis of the above embodiments, further, the reception satellite synchronous signal, merges with business datum, then
It is converted into optical signal, is specifically included:
Receive satellite synchronous signal；
Processing is amplified to the satellite synchronous signal received；
A/D processing is carried out to the satellite synchronous signal after enhanced processing；
Will by A/D, treated that satellite synchronous signal merges with business datum, reconvert is at optical signal.
Specifically, Fig. 3 is the structural schematic diagram of the Base Band Unit of extended pattern scytoblastema station provided in an embodiment of the present invention, such as
Shown in Fig. 3, the Base Band Unit of base station described in the embodiment of the present invention includes satellite synchronous signal receiving antenna 301, splitter
302, satellite synchronization receives star card 303, the first amplifier 304, A/D converter 305, baseband processing module 306, the first FPGA mould
Block 307, time frequency processing module 308 and the first digital laser 309.It should be noted that Fig. 3 is schematic diagram, it is a kind of preferred reality
Apply example.
Base Band Unit in the embodiment of the present invention can not include section components therein, correspondingly, the company between component
It is also different to connect relationship.
Firstly, receiving satellite synchronous signal, satellite synchronous signal receiving antenna by satellite synchronous signal receiving antenna 301
Satellite synchronous signal is transferred to the first amplifier 304 by feeder by 301 puts the satellite synchronous signal received
Big processing, the first amplifier 304 is a kind of low-noise amplifier.
Then, the satellite synchronous signal by 305 pairs of A/D converter after enhanced processing carries out A/D processing, keeps satellite same
It walks signal and digital signal is converted by analog signal.
Finally, will by A/D, treated that satellite synchronous signal merges with business datum, then pass through the first digital laser
309 will by A/D, treated that satellite synchronous signal is converted into optical signal, and expanding element is transferred signals to by optical fiber.
The method provided in an embodiment of the present invention that satellite synchronous signal is transmitted on extended pattern scytoblastema station, passes through extended pattern skin
The transmission of satellite synchronous signal is realized in base station, makes full use of the transmission link of extended pattern scytoblastema station itself, avoids repeating construction, portion
Affix one's name to less investment, distribution flexibly；And the remote restricted problem of the drawing for efficiently solving satellite synchronous signal, in long tunnel
Equipment, terminal in the environment such as road, heavy construction body, basement obtain satellite synchronous signal and provide effective solution.
On the basis of the above various embodiments, further, it is described will be by A/D treated satellite synchronous signal and industry
Data of being engaged in merge, and reconvert is specifically included at optical signal:
Will by A/D, treated that satellite synchronous signal is merged with business datum, be assembled into general public wireless and connect
Mouth CPRI frame；
The CPRI frame is converted into optical signal again.
Specifically, as shown in figure 3, Base Band Unit described in the embodiment of the present invention further includes the first FPGA module 307.
Before satellite synchronous signal is converted into optical signal, by the way that the first FPGA module 307 will treated by A/D
Satellite synchronous signal is merged with business datum, is assembled into common public radio interface CPRI frame, and CPRI frame is transmitted to
First digital laser 309, then CPRI frame is converted into optical signal by the first digital laser 309, it is transmitted through the fiber to expansion
Open up unit.
Baseband processing module 306 is the processing core of base station, includes physical layer and agreement stack content, realizes from core net
Business datum access and Base-Band Processing, can handle 2G, 3G, 4G mobile communication business according to base station standard difference.FPGA is mainly real
The framing and frame decoding of existing CPRI, down direction, by the synchronization signal data from A/D and the business base from baseband processing module
Band data and OAM (Operations, Administration and Maintenance) etc. press certain compatible rule merging with circuit-switched data, are assembled into suitable optical fiber transmission
CPRI frame, wherein satellite synchronous signal is placed in the fixation position of CPRI frame.
The method provided in an embodiment of the present invention that satellite synchronous signal is transmitted on extended pattern scytoblastema station, passes through extended pattern skin
The transmission of satellite synchronous signal is realized in base station, makes full use of the transmission link of extended pattern scytoblastema station itself, avoids repeating construction, portion
Affix one's name to less investment, distribution flexibly；And the remote restricted problem of the drawing for efficiently solving satellite synchronous signal, in long tunnel
Equipment, terminal in the environment such as road, heavy construction body, basement obtain satellite synchronous signal and provide effective solution.
On the basis of the above various embodiments, further, the described pair of satellite synchronous signal received amplifies place
Reason, specifically includes:
The satellite synchronous signal that will acquire is divided into two-way；
To wherein satellite synchronous signal amplifies processing all the way；
Separate and restore pulse per second (PPS) and temporal information from another way satellite synchronous signal, and according to the pulse per second (PPS) and
The temporal information realizes that the whole network of base station itself is synchronous.
Specifically, as shown in figure 3, Base Band Unit described in the embodiment of the present invention further includes splitter 302, satellite synchronization
Receive star card 303 and time frequency processing module 308.
Splitter 302 carries out branch to the received carrier wave of satellite synchronous signal receiving antenna 301, and the first amplifier 304 is right
Wherein satellite synchronous signal amplifies processing all the way, zooms out information source entrance as synchronization signal and zooms out treatment channel.
In addition satellite synchronous signal access satellite synchronization receives star card 303 all the way, and satellite synchronization receives the separation of star card 303 simultaneously
Pulse per second (PPS) and temporal information (1pps+ToD) are restored, and pulse per second (PPS) and temporal information are transmitted to time frequency processing module 308, when
For frequency processing module 308 based on the received on the basis of 1pps+ToD information, outgoing traffic handles the clock of required various frequencies
Signal, while the synchronization signal A/D clock source of sampling being provided, so that the synchronization of itself is realized in base station, and guarantee satellite synchronization
The synchronization of signal sampling.
The clock used in the whole process of transmission and the processing of satellite synchronous signal is synchronized with Base Band Unit acquisition
Synchronised clock, to guarantee that the satellite synchronous signal that recovers will not generate frequency shift (FS).Equipment, the terminal covered obtains
To satellite synchronous signal can realize Frequency Synchronization, need to be in equipment, terminal side according to satellite if you need to realize accurate time synchronization
Time bias is arranged in the downlink processing time delay of synchronization signal, and accurate time synchronization can be realized.Downlink processing time delay can pass through
Automatic or manual mode measurement obtains.
The method provided in an embodiment of the present invention that satellite synchronous signal is transmitted on extended pattern scytoblastema station, passes through extended pattern skin
The transmission of satellite synchronous signal is realized in base station, makes full use of the transmission link of extended pattern scytoblastema station itself, avoids repeating construction, portion
Affix one's name to less investment, distribution flexibly；And the remote restricted problem of the drawing for efficiently solving satellite synchronous signal, in long tunnel
Equipment, terminal in the environment such as road, heavy construction body, basement obtain satellite synchronous signal and provide effective solution.
It is further, described to receive the optical signal on the basis of the above various embodiments, and the optical signal is converted
At electric signal, specifically include:
The optical signal is received, and the optical signal is converted into electric signal；
The electric signal is assembled into ethernet frame.
Specifically, Fig. 4 is the structural schematic diagram of the expanding element of extended pattern scytoblastema station provided in an embodiment of the present invention, such as
Shown in Fig. 4, the expanding element of base station described in the embodiment of the present invention includes the second digital laser 401, the second FPGA module 402
With the first physical layer (PHY) interface 403 and cascade digital laser 404 and PSE module 405.It should be noted that Fig. 4 is
Schematic diagram is a kind of preferred embodiment.
Expanding element in the embodiment of the present invention can not include section components therein, correspondingly, the company between component
It is also different to connect relationship.
In down direction, firstly, the second digital laser 401 obtains optical signal from Base Band Unit by optical fiber.
Then, electric signal is converted optical signals by the second digital laser 401, and electric signal transmission is given by second
FPGA module 402.
Finally, the second FPGA module 402, which replicates a data forwarding to cascade digital laser 404, carries out cascade forwarding,
It is sent to junior's expanding element.
To downlink processing link, the second FPGA module 402 is by CPRI signal frame decoding, OAM needed for isolating expanding element
Or other are with circuit-switched data, then by cable pass business datum, satellite synchronous signal data and to the OAM data of extension unit
The ethernet frame format of defeated requirement carries out framing, and is sent to ethernet PHY interface 403.Phy interface 403 be accomplished to it is each under
Network the data transmit-receive of mouth, data transmit-receive using the second FPGA module 402 extracted from downlink data with Lu Shizhong, to realize
Synchronization between each unit.
48V direct current is fed into the pin that each second line of a couplet network interface Plays POE line sequence defines by PSE module 405, is passed through
Cable is powered to second line of a couplet radio frequency spread unit.
In up direction, the second FPGA module 402 completes the frame decoding of ethernet frame and the framing of CPRI frame.
The method provided in an embodiment of the present invention that satellite synchronous signal is transmitted on extended pattern scytoblastema station, passes through extended pattern skin
The transmission of satellite synchronous signal is realized in base station, makes full use of the transmission link of extended pattern scytoblastema station itself, avoids repeating construction, portion
Affix one's name to less investment, distribution flexibly；And the remote restricted problem of the drawing for efficiently solving satellite synchronous signal, in long tunnel
Equipment, terminal in the environment such as road, heavy construction body, basement obtain satellite synchronous signal and provide effective solution.
It is further, described to receive the electric signal on the basis of the above various embodiments, it therefrom separates and restores institute
Satellite synchronous signal is stated, and the satellite synchronous signal is launched, is specifically included:
Receive the electric signal；
It is separated from the electric signal and restores the satellite synchronous signal；
D/A processing is carried out to the satellite synchronous signal；
To by D/A, treated that satellite synchronous signal amplifies processing；
Satellite synchronous signal after enhanced processing is filtered；
Satellite synchronous signal after filtering processing is launched by radio-frequency antenna.
Specifically, Fig. 5 is the structural representation of the Remote Radio Unit of extended pattern scytoblastema station provided in an embodiment of the present invention
Figure, as shown in figure 5, the Remote Radio Unit of base station described in the embodiment of the present invention includes the second phy interface 501, the 3rd FPGA
Module 502, D/A (A/D) converter 503, third amplifier 504, first filter 505, D/A converter 506, the second amplifier
507, second filter 508, combiner 509, POE power supply processing module 510, wideband covering antenna 511 and independent covering antenna
512.It should be noted that Fig. 5 is schematic diagram, it is a kind of preferred embodiment.
Remote Radio Unit in the embodiment of the present invention can not include section components therein, correspondingly, between component
Connection relationship it is also different.
Firstly, third FPGA module 502 from phy interface 501 receive the Ethernet data from expanding element, and to its into
Then row frame decoding separates satellite synchronous signal with business datum.
Then, it by business data transmission to D/A (A/D) converter 503, is amplified using third amplifier 504, then
It is filtered by first filter 505 (being duplexer to frequency division standard), covers antenna 511 for business number finally by wideband
According to launching.The working frequency range of first filter 505 is corresponding with the mobile communication signal frequency range.
The satellite synchronous signal that third FPGA module 502 will be isolated, and satellite synchronous signal is transmitted to D/A converter
506, restore synchronous carrier signal.
After D/A converter 506 restores synchronous carrier signal, processing is amplified by the second amplifier 507, then pass through
Second filter 508 is filtered, and launches satellite synchronous signal finally by independent covering antenna 512.Wherein,
Second amplifier 507 and the working frequency range of second filter 508 are corresponding with satellite synchronous signal frequency range.
Furthermore it is also possible to business datum and satellite synchronous signal is combined by combiner 509, then pass through wideband
Covering antenna 511 is launched data are combined.In such cases, wideband covering antenna 511 should support mobile communication to believe simultaneously
The independent covering antenna 512 of number frequency range and satellite synchronous signal frequency range, no longer installation.
The method provided in an embodiment of the present invention that satellite synchronous signal is transmitted on extended pattern scytoblastema station, passes through extended pattern skin
The transmission of satellite synchronous signal is realized in base station, makes full use of the transmission link of extended pattern scytoblastema station itself, avoids repeating construction, portion
Affix one's name to less investment, distribution flexibly；And the remote restricted problem of the drawing for efficiently solving satellite synchronous signal, in long tunnel
Equipment, terminal in the environment such as road, heavy construction body, basement obtain satellite synchronous signal and provide effective solution.
Fig. 2 is extended pattern scytoblastema station structural schematic diagram provided in an embodiment of the present invention, as shown in Fig. 2, the embodiment of the present invention
A kind of extended pattern scytoblastema station is provided, for executing any of the above-described method as described in the examples, specifically includes Base Band Unit, extension
Unit and Remote Radio Unit, in which:
Base Band Unit merges, reconvert is at optical signal, so that described for receiving satellite synchronous signal with business datum
Optical signal transmits in a fiber；The optical signal is converted into electric signal for receiving the optical signal by expanding element, so that
The electric signal is obtained to transmit in twisted pair；Remote Radio Unit therefrom separates for receiving the electric signal and restores institute
Satellite synchronous signal is stated, and the satellite synchronous signal is launched.
Specifically, extended pattern scytoblastema station described in the embodiment of the present invention include Base Band Unit, several expanding elements and
Several Remote Radio Unit, for realize Remote Radio Unit flexible distributed and miniaturization, by Base Band Unit and remote radio
Unit separation, centre joined expanding element, and therefore, Remote Radio Unit is also known as Remote Radio Unit.Wherein, Base Band Unit is logical
It crosses optical fiber to be connected with expanding element, expanding element is connected by twisted pair (cable) with Remote Radio Unit；Expanding element can be with
Several Remote Radio Unit of the second line of a couplet, can also cascade junior's expanding element.
Firstly, by Base Band Unit receive satellite synchronous signal, merge with business datum, reconvert at optical signal so that
Optical signal is obtained to transmit in a fiber.
Then, expanding element receives the optical signal of Base Band Unit transmission, and converts optical signals into electric signal, so that electric
Signal transmits in twisted pair.
Finally, Remote Radio Unit receives electric signal, satellite synchronous signal is therefrom separated and restored, and by satellite synchronization
Signal is launched.After equipment to be synchronized receives the satellite synchronous signal, realizes and synchronize.
Extended pattern scytoblastema station provided in an embodiment of the present invention realizes the biography of satellite synchronous signal by extended pattern scytoblastema station
It is defeated, the transmission link of extended pattern scytoblastema station itself is made full use of, avoids repeating to construct, deployment less investment, be distributed flexibly；And have
Effect solves the remote restricted problem of drawing of satellite synchronous signal, in environment such as long tunnel, heavy construction body, basements
In equipment, terminal obtains satellite synchronous signal and provides effective solution.
On the basis of the above embodiments, further, the Base Band Unit include the first amplifier, A/D converter and
First digital laser；
First amplifier is for amplifying processing to the satellite synchronous signal received；
The A/D converter is used to carry out A/D processing to the satellite synchronous signal after enhanced processing；
First digital laser is for will treated that satellite synchronous signal is converted into optical signal by A/D.
Specifically, Fig. 3 is the structural schematic diagram of the Base Band Unit of extended pattern scytoblastema station provided in an embodiment of the present invention, such as
Shown in Fig. 3, the Base Band Unit of base station described in the embodiment of the present invention includes satellite synchronous signal receiving antenna 301, splitter
302, satellite synchronization receives star card 303, the first amplifier 304, A/D converter 305, baseband processing module 306, the first FPGA mould
Block 307, time frequency processing module 308 and the first digital laser 309.It should be noted that Fig. 3 is schematic diagram, it is a kind of preferred reality
Apply example.
Base Band Unit in the embodiment of the present invention can not include section components therein, correspondingly, the company between component
It is also different to connect relationship.
Firstly, receiving satellite synchronous signal, satellite synchronous signal receiving antenna by satellite synchronous signal receiving antenna 301
Satellite synchronous signal is transferred to the first amplifier 304 by feeder by 301 puts the satellite synchronous signal received
Big processing, the first amplifier 304 is a kind of low-noise amplifier.
Then, the satellite synchronous signal by 305 pairs of A/D converter after enhanced processing carries out A/D processing, keeps satellite same
It walks signal and digital signal is converted by analog signal.
Finally, will by A/D, treated that satellite synchronous signal merges with business datum, pass through the first digital laser
309 will by A/D, treated that satellite synchronous signal is converted into optical signal, and expanding element is transferred signals to by optical fiber.
Extended pattern scytoblastema station provided in an embodiment of the present invention realizes the biography of satellite synchronous signal by extended pattern scytoblastema station
It is defeated, the transmission link of extended pattern scytoblastema station itself is made full use of, avoids repeating to construct, deployment less investment, be distributed flexibly；And have
Effect solves the remote restricted problem of drawing of satellite synchronous signal, in environment such as long tunnel, heavy construction body, basements
In equipment, terminal obtains satellite synchronous signal and provides effective solution.
On the basis of the above various embodiments, further, the Base Band Unit further includes the first FPGA module；
First FPGA module for will by A/D, treated that satellite synchronous signal is merged with business datum,
It is assembled into common public radio interface CPRI frame；
The CPRI frame is converted by optical signal by first digital laser again.
Specifically, as shown in figure 3, Base Band Unit described in the embodiment of the present invention further includes the first FPGA module 307.
Before satellite synchronous signal is converted into optical signal, by the way that the first FPGA module 307 will treated by A/D
Satellite synchronous signal is merged with business datum, is assembled into common public radio interface CPRI frame, and CPRI frame is transmitted to
First digital laser 309, then CPRI frame is converted into optical signal by the first digital laser 309, it is transmitted through the fiber to expansion
Open up unit.
Baseband processing module 306 is the processing core of base station, includes physical layer and agreement stack content, realizes from core net
Business datum access and Base-Band Processing, can handle 2G, 3G, 4G mobile communication business according to base station standard difference.FPGA is mainly real
The framing and frame decoding of existing CPRI, down direction, by the synchronization signal data from A/D and the business base from baseband processing module
Band data and OAM (Operations, Administration and Maintenance) etc. press certain compatible rule merging with circuit-switched data, are assembled into suitable optical fiber transmission
CPRI frame, wherein satellite synchronous signal is placed in the fixation position of CPRI frame.
Extended pattern scytoblastema station provided in an embodiment of the present invention realizes the biography of satellite synchronous signal by extended pattern scytoblastema station
It is defeated, the transmission link of extended pattern scytoblastema station itself is made full use of, avoids repeating to construct, deployment less investment, be distributed flexibly；And have
Effect solves the remote restricted problem of drawing of satellite synchronous signal, in environment such as long tunnel, heavy construction body, basements
In equipment, terminal obtains satellite synchronous signal and provides effective solution.
On the basis of the above various embodiments, further, the Base Band Unit further includes splitter, satellite synchronization reception
Star card and time frequency processing module；
The satellite synchronous signal that the splitter is used to will acquire is divided into two-way；
First amplifier is to wherein satellite synchronous signal amplifies processing all the way；
The satellite synchronization receive star card for separate and restore from another way satellite synchronous signal pulse per second (PPS) and when
Between information；
When the time frequency processing module is used for synchronous to the output of the A/D converter, baseband processing module and FPGA module
Clock, so that the synchronization of the whole network is completed in base station itself.
Specifically, as shown in figure 3, Base Band Unit described in the embodiment of the present invention further includes splitter 302, satellite synchronization
Receive star card 303 and time frequency processing module 308.
Splitter 302 carries out branch to the received carrier wave of satellite synchronous signal receiving antenna 301, and the first amplifier 304 is right
Wherein satellite synchronous signal amplifies processing all the way, zooms out information source entrance as synchronization signal and zooms out treatment channel.
In addition satellite synchronous signal access satellite synchronization receives star card 303 all the way, and satellite synchronization receives the separation of star card 303 simultaneously
Pulse per second (PPS) and temporal information (1pps+ToD) are restored, and pulse per second (PPS) and temporal information are transmitted to time frequency processing module 308, when
For frequency processing module 308 based on the received on the basis of 1pps+ToD information, outgoing traffic handles the clock of required various frequencies
Signal, while the synchronization signal A/D clock source of sampling being provided, so that the synchronization of itself is realized in base station, and guarantee satellite synchronization
The synchronization of signal sampling.
The clock used in the whole process of transmission and the processing of satellite synchronous signal is synchronized with Base Band Unit acquisition
Synchronised clock, to guarantee that the satellite synchronous signal that recovers will not generate frequency shift (FS).Equipment, the terminal covered obtains
To satellite synchronous signal can realize Frequency Synchronization, need to be in equipment, terminal side according to satellite if you need to realize accurate time synchronization
Time bias is arranged in the downlink processing time delay of synchronization signal, and accurate time synchronization can be realized.Downlink processing time delay can pass through
Automatic or manual mode measurement obtains.
Extended pattern scytoblastema station provided in an embodiment of the present invention realizes the biography of satellite synchronous signal by extended pattern scytoblastema station
It is defeated, the transmission link of extended pattern scytoblastema station itself is made full use of, avoids repeating to construct, deployment less investment, be distributed flexibly；And have
Effect solves the remote restricted problem of drawing of satellite synchronous signal, in environment such as long tunnel, heavy construction body, basements
In equipment, terminal obtains satellite synchronous signal and provides effective solution.
On the basis of the above various embodiments, further, the expanding element includes the second digital laser and second
FPGA module:
The optical signal is converted into electric signal for receiving the optical signal by second digital laser；
Second FPGA module is used to the electric signal being assembled into ethernet frame.
Specifically, Fig. 4 is the structural schematic diagram of the expanding element of extended pattern scytoblastema station provided in an embodiment of the present invention, such as
Shown in Fig. 4, the expanding element of base station described in the embodiment of the present invention includes the second digital laser 401, the second FPGA module 402
With the first physical layer (PHY) interface 403 and cascade digital laser 404 and PSE module 405.It should be noted that Fig. 4 is
Schematic diagram is a kind of preferred embodiment.
Expanding element in the embodiment of the present invention can not include section components therein, correspondingly, the company between component
It is also different to connect relationship.
In down direction, firstly, the second digital laser 401 obtains optical signal from Base Band Unit by optical fiber.
Then, electric signal is converted optical signals by the second digital laser 401, and electric signal transmission is given by second
FPGA module 402.
Finally, the second FPGA module 402, which replicates a data forwarding to cascade digital laser 404, carries out cascade forwarding,
It is sent to junior's expanding element.
To downlink processing link, the second FPGA module 402 is by CPRI signal frame decoding, OAM needed for isolating expanding element
Or other are with circuit-switched data, then by cable pass business datum, satellite synchronous signal data and to the OAM data of extension unit
The ethernet frame format of defeated requirement carries out framing, and is sent to ethernet PHY interface 403.Phy interface 403 be accomplished to it is each under
Network the data transmit-receive of mouth, data transmit-receive using the second FPGA module 402 extracted from downlink data with Lu Shizhong, to realize
Synchronization between each unit.
48V direct current is fed into the pin that each second line of a couplet network interface Plays POE line sequence defines by PSE module 405, is passed through
Cable is powered to second line of a couplet radio frequency spread unit.
In up direction, the second FPGA module 402 completes the frame decoding of ethernet frame and the framing of CPRI frame.
Extended pattern scytoblastema station provided in an embodiment of the present invention realizes the biography of satellite synchronous signal by extended pattern scytoblastema station
It is defeated, the transmission link of extended pattern scytoblastema station itself is made full use of, avoids repeating to construct, deployment less investment, be distributed flexibly；And have
Effect solves the remote restricted problem of drawing of satellite synchronous signal, in environment such as long tunnel, heavy construction body, basements
In equipment, terminal obtains satellite synchronous signal and provides effective solution.
On the basis of the above various embodiments, further, the Remote Radio Unit includes physical layer interface, third
FPGA module, D/A converter, the second amplifier, filter and radio-frequency antenna；
The physical layer interface is for receiving the electric signal；
The third FPGA module from the electric signal for separating and restoring the satellite synchronous signal；
The D/A converter is used to carry out D/A processing to the satellite synchronous signal；
Second amplifier is used for by D/A, treated that satellite synchronous signal amplifies processing；
The filter is for being filtered the satellite synchronous signal after enhanced processing；
The radio-frequency antenna is used to launch the satellite synchronous signal after filtering processing.
Specifically, Fig. 5 is the structural representation of the Remote Radio Unit of extended pattern scytoblastema station provided in an embodiment of the present invention
Figure, as shown in figure 5, the Remote Radio Unit of base station described in the embodiment of the present invention includes the second phy interface 501, the 3rd FPGA
Module 502, D/A (A/D) converter 503, third amplifier 504, first filter 505, D/A converter 506, the second amplifier
507, second filter 508, combiner 509, POE power supply processing module 510, wideband covering antenna 511 and independent covering antenna
512.It should be noted that Fig. 5 is schematic diagram, it is a kind of preferred embodiment.
Remote Radio Unit in the embodiment of the present invention can not include section components therein, correspondingly, between component
Connection relationship it is also different.
Firstly, third FPGA module 502 from phy interface 501 receive the Ethernet data from expanding element, and to its into
Then row frame decoding separates satellite synchronous signal with business datum.
Then, it by business data transmission to D/A (A/D) converter 503, is amplified using third amplifier 504, then
It is filtered by first filter 505 (being duplexer to frequency division standard), covers antenna 511 for business number finally by wideband
According to launching.The working frequency range of first filter 505 is corresponding with the mobile communication signal frequency range.
The satellite synchronous signal that third FPGA module 502 will be isolated, and satellite synchronous signal is transmitted to D/A converter
506, restore synchronous carrier signal.
After D/A converter 506 restores synchronous carrier signal, processing is amplified by the second amplifier 507, then pass through
Second filter 508 is filtered, and launches satellite synchronous signal finally by independent covering antenna 512.Wherein,
Second amplifier 507 and the working frequency range of second filter 508 are corresponding with satellite synchronous signal frequency range.
Furthermore it is also possible to business datum and satellite synchronous signal is combined by combiner 509, then pass through wideband
Covering antenna 511 is launched data are combined.In such cases, wideband covering antenna 511 should support mobile communication to believe simultaneously
The independent covering antenna 512 of number frequency range and satellite synchronous signal frequency range, no longer installation.
Extended pattern scytoblastema station provided in an embodiment of the present invention realizes the biography of satellite synchronous signal by extended pattern scytoblastema station
It is defeated, the transmission link of extended pattern scytoblastema station itself is made full use of, avoids repeating to construct, deployment less investment, be distributed flexibly；And have
Effect solves the remote restricted problem of drawing of satellite synchronous signal, in environment such as long tunnel, heavy construction body, basements
In equipment, terminal obtains satellite synchronous signal and provides effective solution.
Fig. 6 is the structural schematic diagram of electronic equipment provided in an embodiment of the present invention, as shown in fig. 6, the equipment includes: place
Manage device 601, memory 602 and bus 603；
Wherein, processor 601 and memory 602 complete mutual communication by the bus 603；
Processor 601 is used to call the program instruction in memory 602, to execute provided by above-mentioned each method embodiment
Method, for example,
Base Band Unit receives satellite synchronous signal, merges with business datum, and reconvert is at optical signal, so that the light is believed
It number transmits in a fiber；
Expanding element receives the optical signal, and the optical signal is converted into electric signal, so that the electric signal exists
It is transmitted in twisted pair；
Remote Radio Unit receives the electric signal, therefrom separates and restore the satellite synchronous signal, and will be described
Satellite synchronous signal is launched.
The embodiment of the present invention provides a kind of computer program product, and the computer program product is non-transient including being stored in
Computer program on computer readable storage medium, the computer program include program instruction, when described program instructs quilt
When computer executes, computer is able to carry out method provided by above-mentioned each method embodiment, for example,
Base Band Unit receives satellite synchronous signal, merges with business datum, and reconvert is at optical signal, so that the light is believed
It number transmits in a fiber；
Expanding element receives the optical signal, and the optical signal is converted into electric signal, so that the electric signal exists
It is transmitted in twisted pair；
Remote Radio Unit receives the electric signal, therefrom separates and restore the satellite synchronous signal, and will be described
Satellite synchronous signal is launched.
The embodiment of the present invention provides a kind of non-transient computer readable storage medium, the non-transient computer readable storage
Medium storing computer instruction, the computer instruction make the computer execute side provided by above-mentioned each method embodiment
Method, for example,
Base Band Unit receives satellite synchronous signal, merges with business datum, and reconvert is at optical signal, so that the light is believed
It number transmits in a fiber；
Expanding element receives the optical signal, and the optical signal is converted into electric signal, so that the electric signal exists
It is transmitted in twisted pair；
Remote Radio Unit receives the electric signal, therefrom separates and restore the satellite synchronous signal, and will be described
Satellite synchronous signal is launched.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes: ROM, RAM, magnetic disk or light
The various media that can store program code such as disk.
The embodiments such as device and equipment described above are only schematical, wherein described be used as separate part description
Unit may or may not be physically separated, component shown as a unit may or may not be
Physical unit, it can it is in one place, or may be distributed over multiple network units.It can be according to the actual needs
Some or all of the modules therein is selected to achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying
In the case where creative labor, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of method for transmitting satellite synchronous signal on extended pattern scytoblastema station characterized by comprising
Base Band Unit receives satellite synchronous signal, merges with business datum, reconvert is at optical signal, so that the optical signal exists
It is transmitted in optical fiber；
Expanding element receives the optical signal, and the optical signal is converted into electric signal, so that the electric signal is in multiple twin
It is transmitted in line；
Remote Radio Unit receives the electric signal, therefrom separates and restore the satellite synchronous signal, and by the satellite
Synchronization signal is launched.
2. the method according to claim 1, wherein the reception satellite synchronous signal, merges with business datum,
Reconvert is specifically included at optical signal:
Receive satellite synchronous signal；
Processing is amplified to the satellite synchronous signal received；
A/D processing is carried out to the satellite synchronous signal after enhanced processing；
Will by A/D, treated that satellite synchronous signal merges with business datum, reconvert is at optical signal.
3. according to the method described in claim 2, it is characterized in that, it is described will by A/D treated satellite synchronous signal with
Business datum merges, and reconvert is specifically included at optical signal:
Will by A/D, treated that satellite synchronous signal is merged with business datum, be assembled into common public radio interface
CPRI frame；
The CPRI frame is converted into optical signal again.
4. the method according to claim 1, wherein described receive the optical signal, and the optical signal is turned
It changes electric signal into, specifically includes:
The optical signal is received, and the optical signal is converted into electric signal；
The electric signal is assembled into ethernet frame.
5. therefrom separating and restoring the method according to claim 1, wherein described receive the electric signal
The satellite synchronous signal, and the satellite synchronous signal is launched, it specifically includes:
Receive the electric signal；
It is separated from the electric signal and restores the satellite synchronous signal；
D/A processing is carried out to the satellite synchronous signal；
To by D/A, treated that satellite synchronous signal amplifies processing；
Satellite synchronous signal after enhanced processing is filtered；
Satellite synchronous signal after filtering processing is launched by radio-frequency antenna.
6. a kind of extended pattern scytoblastema station characterized by comprising
Base Band Unit merges for receiving satellite synchronous signal with business datum, and reconvert is at optical signal, so that the light
Signal transmits in a fiber；
Expanding element is converted into electric signal for receiving the optical signal, and by the optical signal, so that the electric signal exists
It is transmitted in twisted pair；
Remote Radio Unit therefrom separates and restores the satellite synchronous signal, and will be described for receiving the electric signal
Satellite synchronous signal is launched.
7. base station according to claim 6, which is characterized in that the Base Band Unit includes the first amplifier, A/D converter
With the first digital laser；
First amplifier is for amplifying processing to the satellite synchronous signal received；
The A/D converter is used to carry out A/D processing to the satellite synchronous signal after enhanced processing；
First digital laser is for will treated that satellite synchronous signal is converted into optical signal by A/D.
8. base station according to claim 7, which is characterized in that the Base Band Unit further includes the first FPGA module；
First FPGA module for will by A/D, treated that satellite synchronous signal is merged with business datum, assemble
At common public radio interface CPRI frame；
The CPRI frame is converted by optical signal by first digital laser again.
9. a kind of electronic equipment characterized by comprising
Memory and processor, the processor and the memory complete mutual communication by bus；The memory
It is stored with the program instruction that can be executed by the processor, the processor calls described program instruction to be able to carry out right such as and wants
Seek 1 to 5 any method.
10. a kind of non-transient computer readable storage medium, is stored thereon with computer program, which is characterized in that when the meter
When calculation machine program is executed by processor, method as claimed in claim 1 to 5 is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910038916.9A CN109687899B (en) | 2019-01-16 | 2019-01-16 | Method for transmitting satellite synchronous signal on extended type pico-base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910038916.9A CN109687899B (en) | 2019-01-16 | 2019-01-16 | Method for transmitting satellite synchronous signal on extended type pico-base station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109687899A true CN109687899A (en) | 2019-04-26 |
| CN109687899B CN109687899B (en) | 2021-10-22 |
Family
ID=66192423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910038916.9A Active CN109687899B (en) | 2019-01-16 | 2019-01-16 | Method for transmitting satellite synchronous signal on extended type pico-base station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109687899B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020258736A1 (en) * | 2019-06-24 | 2020-12-30 | 京信通信技术(广州)有限公司 | Data transmission method, host unit, expansion unit and base station system |
| CN114567368A (en) * | 2022-02-18 | 2022-05-31 | 中国电子科技集团公司第五十四研究所 | Multi-user concurrent access equipment of heaven-earth system and communication method thereof |
| WO2023087304A1 (en) * | 2021-11-22 | 2023-05-25 | 上海华为技术有限公司 | Data processing method and related apparatus |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011143950A1 (en) * | 2011-01-26 | 2011-11-24 | 华为技术有限公司 | Method and apparatus for implementing time synchronization |
| CN103052083A (en) * | 2011-10-12 | 2013-04-17 | 中兴通讯股份有限公司 | Indoor coverage radio-frequency communication system |
| WO2015076480A1 (en) * | 2013-11-19 | 2015-05-28 | 주식회사 쏠리드 | Time synchronization method between communication units and system thereof |
| CN104936197A (en) * | 2014-03-20 | 2015-09-23 | 常州隽通电子技术有限公司 | Mobile communication micropower digital multipoint indoor coverage system |
| CN107395283A (en) * | 2017-08-11 | 2017-11-24 | 武汉虹信通信技术有限责任公司 | A kind of digital fiber multi-service distributed base station system |
| CN107948986A (en) * | 2018-01-04 | 2018-04-20 | 武汉虹信通信技术有限责任公司 | A kind of satellite synchronization system is distributed the device of covering indoors |
| CN108738033A (en) * | 2018-06-26 | 2018-11-02 | 河南京科科技有限公司 | A kind of indoor covering system |
| CN108847891A (en) * | 2018-05-30 | 2018-11-20 | 武汉虹信通信技术有限责任公司 | A kind of distributed small base station system of light-carried wireless electricity |
| CN109218979A (en) * | 2018-10-18 | 2019-01-15 | 淄博萃智工业设计咨询有限公司 | A kind of distribution indoor navigation system and its downlink signal transmission |
-
2019
- 2019-01-16 CN CN201910038916.9A patent/CN109687899B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011143950A1 (en) * | 2011-01-26 | 2011-11-24 | 华为技术有限公司 | Method and apparatus for implementing time synchronization |
| CN103052083A (en) * | 2011-10-12 | 2013-04-17 | 中兴通讯股份有限公司 | Indoor coverage radio-frequency communication system |
| WO2015076480A1 (en) * | 2013-11-19 | 2015-05-28 | 주식회사 쏠리드 | Time synchronization method between communication units and system thereof |
| CN104936197A (en) * | 2014-03-20 | 2015-09-23 | 常州隽通电子技术有限公司 | Mobile communication micropower digital multipoint indoor coverage system |
| CN107395283A (en) * | 2017-08-11 | 2017-11-24 | 武汉虹信通信技术有限责任公司 | A kind of digital fiber multi-service distributed base station system |
| CN107948986A (en) * | 2018-01-04 | 2018-04-20 | 武汉虹信通信技术有限责任公司 | A kind of satellite synchronization system is distributed the device of covering indoors |
| CN108847891A (en) * | 2018-05-30 | 2018-11-20 | 武汉虹信通信技术有限责任公司 | A kind of distributed small base station system of light-carried wireless electricity |
| CN108738033A (en) * | 2018-06-26 | 2018-11-02 | 河南京科科技有限公司 | A kind of indoor covering system |
| CN109218979A (en) * | 2018-10-18 | 2019-01-15 | 淄博萃智工业设计咨询有限公司 | A kind of distribution indoor navigation system and its downlink signal transmission |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020258736A1 (en) * | 2019-06-24 | 2020-12-30 | 京信通信技术(广州)有限公司 | Data transmission method, host unit, expansion unit and base station system |
| WO2023087304A1 (en) * | 2021-11-22 | 2023-05-25 | 上海华为技术有限公司 | Data processing method and related apparatus |
| CN114567368A (en) * | 2022-02-18 | 2022-05-31 | 中国电子科技集团公司第五十四研究所 | Multi-user concurrent access equipment of heaven-earth system and communication method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109687899B (en) | 2021-10-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109687899A (en) | The method of satellite synchronous signal is transmitted on extended pattern scytoblastema station | |
| JP3471016B2 (en) | Arrangement in a mobile communication system to synchronize transmitters of multiple base stations | |
| KR101480581B1 (en) | Modular wireless communications platform | |
| JP5770309B2 (en) | Method and apparatus for performing time synchronization | |
| WO2001099444B1 (en) | Rf base station data repeater | |
| CN106471756A (en) | Integrated simulation and digital distributed antenna system using Full Fibre Network | |
| CA2471922A1 (en) | Time and frequency synchronisation of equipment at different locations | |
| CA2467187A1 (en) | Method and apparatus for improved location determination in a private radio network using a public network system | |
| CN102469571B (en) | Method and system for realizing delay compensation in distributed base station system | |
| WO2010083115A3 (en) | Systems and methods for mobile phone location with digital distributed antenna systems | |
| DK1275070T3 (en) | Procedure for operating a ticketing system | |
| CA2373835A1 (en) | Method and apparatus for providing a distributed architecture digital wireless communication system | |
| CN103401598A (en) | Novel multi-network-integrated indoor distribution system | |
| CN102711134A (en) | Inter-site wireless interconnection system, method and site | |
| US11038592B2 (en) | Optical relay system and method for setting identification information of remote device in optical relay system | |
| CN108476415B (en) | System and method for priority-based reconfiguration of communication system elements | |
| JP2022552941A (en) | Passive Backplane Architecture for Master Unit of Distributed Antenna System | |
| US20070258719A1 (en) | Remote Unit for Adding Frequency Assignments to a Separation-Type Base Transceiver Station | |
| EP0902553A3 (en) | Method and system for providing global variable data rate connectivity in a satellite-based communications network | |
| RU85055U1 (en) | DIGITAL COMMUNICATION ON-BOARD COMPLEX | |
| CN203445889U (en) | Multi-channel DMR signal monitor | |
| CN113271138A (en) | Method for realizing cross-network communication between Beidou satellite and heaven-through satellite | |
| CN211128209U (en) | Multi-standard base station system | |
| CN202231867U (en) | Mobile communication radio frequency remote system | |
| CN104202751A (en) | Multi-system wireless coverage system based on base station synchronization links |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201029 Address after: 430205 Hubei city of Wuhan province Jiangxia Hidden Dragon Island Tan lake two Road No. 1 Applicant after: Wuhan Hongxin Technology Development Co.,Ltd. Address before: 430073 Hubei province Wuhan Dongxin East Lake high tech Development Zone, Road No. 5 Applicant before: Wuhan Hongxin Telecommunication Technologies Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |